I think he quit doing the 7th gear because the parts became increasingly hard to find.
Unsure what parts are needed, but know they come from another Kawasaki Motorcycle.
One thought is to find/buy the parts yourself and ask if he'll do the conversion.
NOTE: I am not speaking for him. You would have to talk with him.
Ride safe, Ted
Hi Ted ,
I am pretty sure No more 7th gear units even if the parts were sourced from the old 4 cylinder Kawasaki Voyager. The only way to find one is a used unit parted out from a non running Concours 1000 which would be very rare indeed. Many times the person parting out the bike wont even know.